Etoperidone was discovered by scientists at Angelini, who also discovered trazodone. Its development names have included ST-1191 and McN-A-2673-11. The INNetoperidone was proposed in 1976 and recommended in 1977. The drug was given brand names in Spain (Centren (Esteve) and Depraser (Lepori)) and Italy (Staff (Sigma Tau)) and was also given the brand names Axiomin and Etonin, but it is not entirely clear if it was actually marketed; the Pharmaceutical Manufacturing Encyclopedia provides no dates for commercial introduction. According to Micromedex's Index Nominum: International Drug Directory, etoperidone was indeed previously marketed in Spain and Italy.
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